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	So, as West, on lead with:
| ♠ J108 ♥ 863 ♦ 753 ♣ KJ84 | 
do not lead the unbid suit, clubs, and void the dummy. A trump lead is possible, to cut down dummy’s trumping power. The trouble is that the opponents have revealed a side-fit in diamonds, and will probably be able to run that suit after trumps have been drawn. Instead, attack the suit in which declarer will make discards on dummy’s diamonds: I’m talking about spades.
| North Deals None Vul | 
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| West | North | East | South | 
| 1 ♦ | Pass1 | 1 ♥ | |
| Pass | 1 ♠2 | Pass | 3 ♦3 | 
| Pass | 3 ♥4 | Pass | 4 ♥ | 
| All pass | 
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	What happened
	Looking no further than the unbid suit, West led ♣ 4. No good. East won ♣ A and switched to ♥ 2 (what else?). Declarer won ♥ J and ran ♦ J to East’s ♦ K. Winning ♥ 9 return with ♥ K, declarer crossed to ♥ Q (drawing West’s last trump), played out dummy’s winning diamonds discarding ♣ Q and ♠ 2 from hand, and flushed out ♠ A. 10 tricks and game made.
	What should have happened
	It is a different story on ♠ J lead. Declarer covers with ♠ Q, and East wins ♠ A. ♠ 6 comes next, to ♠ 3, ♠ 8 and ♠ K. Declarer crosses to ♥ J and runs ♦ J, but East can win ♦ K, cash ♣ A, and lead over to West’s S10. Down one.
	If you remember one thing...
	Before leading, listen carefully to the bidding, and try to work out dummy’s shape.